15 - Past Paper Simulation -the processor (I)

 1. Rinald is keen to improve his computer's efficiency and performance. (RAM has been upgraded already) Describe some additional changes Rinald could make and how they would improve performance. (6 marks)

 2. The CPU is often called the "brain" of the computer. What does CPU stand for?

 3. ROM and RAM are essential parts of a computer. What do they stand for? (2 marks)

 4. What (in a CPU) is usually measured in GigaHertz (GHz)

 5. State four 'registers' or parts that are found inside a typical CPU (4 marks)

 6. Gabriel wants to buy a new computer and is looking at two models. The specification of the CPU in each PC (personal computer) is shown below. PC 1 is likely to run faster than PC 2 when running a 3D game. Identify one reason for this (1 mark)

 7. Referring to the image and PC specification above, give one reason why the cache size affects CPU performance (1 mark)

 8. Identify four events that take place during the fetch-execute cycle. (4 marks)

 9. Gary has a satellite navigation system (Sat Nav) Gary's Sat Nav which contains an embedded system. Define what is meant by an "embedded system"?(1 mark)

 10. Identify three devices, other than Satellite Navigation systems, that contain embedded systems (3 marks)

 11. Joseph is thinking of buying a new tablet to replace his old computer. Explain how the CPU and RAM work together to enable the tablet computer to operate efficiently (3 marks)

 12. Isaac explains to Joseph that cache also plays an important role in a tablet. Describe the purpose of cache memory (2 marks)

 13. Ebenezer wishes to know the benefits of a dual core processor over a single core processor.Can you explain them to him? (2 marks)

 14. Dontay is considering upgrading his RAM. Describe two differences between RAM and ROM (2 marks)

 15. Explain how upgrading RAM will improve the computer's performance? (2 marks)